Unicode: Whitespace Representation ⇥ ▷ ␣ ¶

Representation of Whitespace Characters by Visible Symbols

These are often used in text editor or word processor to indicate whitespace.

space
· ␣ ␠ ␢

Tab
↹ , ⇄ , ⇤ ⇥ , ↤ ↦ , ◁ ▷ , ⭾ ⭿

paragraph, section
¶ § ␤

newline, return
↵ ↩ ⏎ , ⮐ ⮑ , ⮒ ⮓

· (U+B7: MIDDLE DOT)

Useful when you want to show space as visible chars

␣ (U+2423: OPEN BOX)

Useful when indicating keystrokes

␠ (U+2420: SYMBOL FOR SPACE)

Useful in programing contexts. This usually indicates the ASCII 32.

␢ (U+2422: BLANK SYMBOL)

BLANK SYMBOL

Unicode Whitespace Characters

Unicode characters with property White_Space=yes

• character tabulation U+0009
• line feed U+000A
• line tabulation U+000B
• form feed U+000C
• carriage return U+000D
• space U+0020
• next line U+0085
• no-break space U+00A0
• ogham space mark U+1680
• en quad U+2000
• em quad U+2001
• en space U+2002
• em space U+2003
• three-per-em space U+2004
• four-per-em space U+2005
• six-per-em space U+2006
• figure space U+2007
• punctuation space U+2008
• thin space U+2009
• hair space U+200A
• line separator U+2028
• paragraph separator U+2029
• narrow no-break space U+202F
• medium mathematical space U+205F
• ideographic space U+3000

Unicode Not Whitespace Whitespace

These are Unicode characters that are invisible, but technicaly not considered a whitespace. (they have the property White_Space=no)

• mongolian vowel separator U+180E
• zero width space U+200B
• zero width non-joiner U+200C
• zero width joiner U+200D
• word joiner U+2060
• zero width non-breaking space U+FEFF

Note: there are a lot more unicode characters that are invisible. For example, ASCII Control Characters.